Placing an object in a known amount of water, the quantity of the water that rises helpes you find the volume by

Placing an object in a known amount of water, the quantity of the water that rises helpes you find the volume by DISPLACEMENT

Explanation:

This method is used to measure the volume of irregular objects like some that do not have definite measurements that can be used mathematically to calculate its volume.

When fully immersed in water, the object will displace an equal amount of water as its volume. If this displacement of the water is well measured, such as using a calibrated cylinder, then it is definitely possible to derive the volume of the immersed irregular object.

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.

i don't know. if i were you, i would search it up online : d